test: add test cases for References and ReferencesAsync

Author: nadeem-cs

Contentstack.Management.Core.Unit.Tests/Models/AssetTest.cs

@@ -41,6 +41,8 @@ public void Initialize_Asset()
             Assert.ThrowsExceptionAsync<InvalidOperationException>(() => Asset.PublishAsync(_fixture.Create<PublishUnpublishDetails>()));
             Assert.ThrowsException<InvalidOperationException>(() => Asset.Unpublish(_fixture.Create<PublishUnpublishDetails>()));
             Assert.ThrowsExceptionAsync<InvalidOperationException>(() => Asset.UnpublishAsync(_fixture.Create<PublishUnpublishDetails>()));
+            Assert.ThrowsException<InvalidOperationException>(() => Asset.References());
+            Assert.ThrowsExceptionAsync<InvalidOperationException>(() => Asset.ReferencesAsync());
             Assert.AreEqual(Asset.Query().GetType(), typeof(Query));
         }
 
@@ -186,5 +188,23 @@ public async System.Threading.Tasks.Task Should_Unpublish_Asset_Async()
             Assert.AreEqual(_contentstackResponse.OpenResponse(), response.OpenResponse());
             Assert.AreEqual(_contentstackResponse.OpenJObjectResponse().ToString(), response.OpenJObjectResponse().ToString());
         }
+
+        [TestMethod]
+        public void Should_Get_References_Asset()
+        {
+            ContentstackResponse response = _stack.Asset(_fixture.Create<string>()).References();
+
+            Assert.AreEqual(_contentstackResponse.OpenResponse(), response.OpenResponse());
+            Assert.AreEqual(_contentstackResponse.OpenJObjectResponse().ToString(), response.OpenJObjectResponse().ToString());
+        }
+
+        [TestMethod]
+        public async System.Threading.Tasks.Task Should_Get_References_Asset_Async()
+        {
+            ContentstackResponse response = await _stack.Asset(_fixture.Create<string>()).ReferencesAsync();
+
+            Assert.AreEqual(_contentstackResponse.OpenResponse(), response.OpenResponse());
+            Assert.AreEqual(_contentstackResponse.OpenJObjectResponse().ToString(), response.OpenJObjectResponse().ToString());
+        }
     }
 }